Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pietermaritzburg to Windhoek as you normally would.
For a flight from Pietermaritzburg to Windhoek, you will be flying from Pietermaritzburg. Pietermaritzburg (PZB) is just 2,9 km from the centre of the city. Pietermaritzburg is the only Pietermaritzburg airport and it handles 0 outbound flights to Windhoek per day. 0 airlines have flights to Windhoek from Pietermaritzburg on a regular basis.